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added camera controls

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This commit is contained in:
Muaz Ahmad 2023-05-04 15:01:53 +05:00
parent 518a7b74c2
commit 2b491ac83e
2 changed files with 34 additions and 0 deletions
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29
opglwidget.cpp
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@ -177,4 +177,33 @@ void OPGLWidget::keyReleaseEvent(QKeyEvent *event) {
};
}
void OPGLWidget::mousePressEvent(QMouseEvent *event) {
setMouseTracking(true);
mouse_loc_old[0] = event -> x();
mouse_loc_old[1] = event -> y();
}
void OPGLWidget::mouseReleaseEvent(QMouseEvent *event) {
setMouseTracking(false);
mouse_loc_old[0] = event -> x();
mouse_loc_old[1] = event -> y();
}
void OPGLWidget::mouseMoveEvent(QMouseEvent *event) {
float delta_x = event->x() - mouse_loc_old[0];
float delta_y = event->y() - mouse_loc_old[1];
mouse_loc_old[0] = event->x();
mouse_loc_old[1] = event->y();
for (int i = 0; i < 3; i++) {
f[i] += right[i] * delta_x / 1000.0f;
f[i] -= up[i] * delta_y / 1000.0f;
}
right[0] = -f[2];
right[2] = f[0];
float F_mag = pow(pow(f[0], 2) + pow(f[1], 2) + pow(f[2], 2), 0.5);
float right_mag = pow(pow(right[0], 2) + pow(right[1], 2) + pow(right[2], 2), 0.5);
for (int i = 0; i < 3; i++) {
f[i] = f[i] / F_mag;
right[i] = right[i] / right_mag;
}
}

5
opglwidget.h
View file

@ -1,6 +1,7 @@
#include <QtWidgets/QOpenGLWidget>
#include "obj.h"
#include <QKeyEvent>
#include <QMouseEvent>
class OPGLWidget : public QOpenGLWidget
{
@ -17,6 +18,9 @@ protected:
void keyPressEvent(QKeyEvent *event);
void keyReleaseEvent(QKeyEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
int mtl_idx = -1;
float loc[3] = {0, 0, 10};
@ -27,4 +31,5 @@ protected:
float speed = 0;
ObjectLoader obj;
bool key_states[6] = {false, false, false, false, false, false};
float mouse_loc_old[2];
};